I succeeded to put and get 8000 persistent messages per second.
It's all about how you are doing your tunning !!!
Paul Clarke has shown some tricks on the last IBM European WebSphere Technical Conference
which also showed very fast performance numbers.
He used his windows thinkpad for this and his explanation was that windows is simply lying.
So far i remember it has something to do with the write cache of his ide harddisk.
There is also a way to config the disks according to the message length which imporves the I/O.
Elaborate! i'm on the edge of my seat here
If you are using EMC Discs, you can format the disk according to the fixed message legth, so it will be optimized for that length.
Another way is to put discs with bigger cache.
Disc cache size matters only if the starting size of the cache is less than the size of the in flight messages. If you cannot make the final cache size as big as the inflight messages (queue + log ) you are back to raw disk speed.
With inflight I have an extended definition in mind here: from put to get.
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